Posted by Juergen Peters on 14-05-2005 21:38
#1
Hello!
I don't want to flood the forum with too many contributions a day, so only this last one today...
I still have difficulties to distinguish the two main
Melanostoma species here in Ostwestfalen/Germany,
M. mellinum and
M. scalare, which are both numerously on the wing currently. The keys only give attributes which can't be seen on a lower res photograph, but is it generally correct that the yellow markings on the male abdomen of
M. scalare are broader than on
M. mellinum?
So, is this a male
M. mellinum?
And this a male
M. scalare?
And what about this female?
Last not but least another syrphid. I think this is
Dasysyrphus albostriatus (?).
Thanks again!